Se evalúa el rendimiento ex-dividendo en acciones colombianas entre 1999 y 2007, periodo que incluye la conformación en julio de 2001 de la Bolsa de Valores de Colombia, resultado de la integración de tres bolsas previamente existentes. Contrario a la hipótesis de eficiencia de mercado, se...

This paper examines the empirical behaviour of stock prices around the ex dates of stock splits in order to detect anomalous returns. Also, it is investigated the determinant factors of the split size, its effects on the liquidity and the influence of the market microstructure in the abnormal...

We study the ex-dividend return in the Colombian stock market between 1999 and 2007, period that includes the merger of the former three Colombian stock exchanges in the Bolsa de Valores de Colombia in July 2001. Contrary to the Efficient Market Hypothesis, we found positive and statistically...

Under what circumstances is it necessary or convenient for an agent to rely on habits and rules? This paper focuses on the types of decision situation giving rise to their use. Even optimisation requires the development of rules, and for this reason mainstream economics cannot legitimately...

This paper aims to defend the importance of the information and persuasion in financial markets. The conviction relates to the developments of Argumentation Theory (AT). Understand that economic agents react according to the information they have, and that beliefs play an important role because...

Information sources, creation of informant networks and labors of local intelligence have become very important goals in political power calculations of the paramilitary and insurgents. Phenomena of information and rumor can disclose central aspects to understand the direction of events yet to...

Information sources, creation of informant networks and labors of local intelligence have become very important goals in political power calculations of the paramilitary and insurgents. Phenomena of information and rumor can disclose central aspects to understand the direction of events yet to...

Because of the importance of the energy sector's development for the performance and stability of the economy, its analysis has become an intriguing branch of the economic sciences. For this study it should be tested the characteristics of each of the industries that comprise it, as well as make...

Because of the importance of the energy sector's development for the performance and stability of the economy, its analysis has become an intriguing branch of the economic sciences. For this study it should be tested the characteristics of each of the industries that comprise it, as well as make...